Leica Summilux-M 50mm f/1.4 ASPH.

Leica Summilux-M 50mm f/1.4 ASPH. : Sample Image

I used Imatest to check the sharpness of the lens when paired with the Leica M Monochrom. The results were better than the 1,800 lines per picture height required for a sharp photo at every tested aperture.